openai/gpt-6.1-solGPT-6.1 Sol is OpenAI’s proprietary AI model, released Sep 29, 2026. It costs $2/M input and $10/M output tokens, and handles a 1.1M-token context window. Its strongest use case is coding, where it ranks in the 98th percentile of the models Model Beat tracks.
GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series.
Scores on standardized evaluations. Higher is better — and rank shows where GPT-6.1 Sol lands among all models tracked on Model Beat.
Graduate-level scientific reasoning
Factual accuracy & hallucination
Human-rated web development
Olympiad-qualifier math
Multi-step agentic tasks
GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series.
GPT-6.1 Sol is an AI model developed by OpenAI, part of the GPT family, released Sep 29, 2026.
GPT-6.1 Sol's list price from OpenAI is $2 per million input tokens and $10 per million output tokens.
GPT-6.1 Sol supports a context window of up to 1.1M tokens.
On standardized evaluations tracked by Epoch AI, GPT-6.1 Sol scores 95.4% on GPQA Diamond, 73.9% on SimpleQA Verified, 1759 on WebDev Arena.
GPT-6.1 Sol is a proprietary model (API access), available through its provider's API rather than as a downloadable open-weight model.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Oct 1, 2026.